By EDWARD J. HOFFSCHMIDT
The Swiss adopted their first cal. 7.5 mm. Service rifle in 1889. Designated Swiss Repeating Rifle Model 1889, it was chambered for the Model 90 rimless bottleneck cartridge. The Model 90 cartridge was loaded with 211-gr., paper-patched, steel-capped, hollow-base lead bullet and a compressed charge of semi-smokeless powder. Muzzle velocity was 1968 feet per second (f.p.s.). This cartridge was designed by Col. Eduard Rubin, who was Director of the Swiss Federal Ammunition Factory.
Col. Rudolph Schmidt, director of the Federal Arms Factory, was responsible for design of the rifle, which followed the then-accepted ideas of what a military rifle should be. It had a straight-pull action which afforded greater rapidity of fire than was possible with turn-bolt action designs then current. It had a magazine cut-off so that it could be fired by single loading, with the full magazine of 12 rounds held in reserve. When the cut-off is in down position, the magazine is lowered free of the bolt; in the up position, the cartridges will feed from the magazine.
Aside from representing finest workmanship and materials, the Model 1889 Schmidt-Rubin has little to recommend it. The system is unlike any other straight-pull design and is by far the longest and clumsiest. The receiver is about 1V3 times as long as that of the Mauser Model 98. The safety mechanism is positive, but awkward to operate.
The Model 1889 rifle with 30.7" barrel is long and unwieldy. It is not surprising that it underwent a series of design changes in 1896, 1911, and 1931, resulting in a much more compact and effective arm. The original Model 90 ball cartridge was also subjected to much improvement, resulting in the still-standard Model 1911 ball cartridge with 174-gr. pointed boattail bullet driven at 2640 f.p.s.
ITo remove bolt, press down on bolt stop (18) and pull bolt free of gun. To remove extractor (12), wedge up extractor tail to free it from its notch in the bolt. Pry up claw and rotate extractor clockwise until it is free of bolt
2 To disassemble bolt, pull back cocking piece (1) and bring it to rest between 2 square cutouts in bolt plug (2) as shown. Rotate locking sleeve (10) clockwise until cam rod (5) can be pulled clear of sleeve. Then slide cam rod (5) forward until its rear end is free of dovetail slot in bolt plug (2). Unscrew bolt plug (2) from bolt (11) and remove bolt locking sleeve (10)
3 The firing pin (9) is retained something like those in the Springfield or Krag. To remove the pin, first be sure cocking piece is all the way forward in its notch. This will relieve firing pin spring (8) tension. Then pull back spring and slide firing pin off cocking piece (1)
4 To remove the trigger assembly, push sear arm (22) in hard and back as shown, until it can't go any further. Then pull trigger (24) and entire trigger and sear assembly will drop free
l. Cocking piccc
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